Piltek



Au 14. 1923. mmgw E. L. BISHOP FILTER Fi-l ed Aug.-1l, 1926 4 Sheets-Sheet l E. L. BISHOP FILTE-R Filed 1926 4 Sheets-Sheet 2 avweutow EZLE iskop E. L. BISHOP FILTER 4 Sheets-Sheet Filed Aug. 11, 1926 Patented Aug. 1 4, 1928 UNITED iSTATES mmi s'r L. msnor, or nuns-Air, CALIFORNIA.

FILTER. o

Application filed August 11, 1926. Serial No. 128,672.

r This invention relates to filters and has foreign matter and deliver the same to a settling tank from which the clear water is returned to thecanal for use; The inven-- tion provides an apparatus for the. stated purpose which will not interfere with the; flow of the water, which maybe-operated under light ower, and which is eificient in operation. ne embodiment of the invention is illustrated in the accompanying drawings, andthe inventionresides in certain novel features which will be particularly pointed out in the appended claims 7 In the drawings: y

a Figure 1 is aplan-view of an apparatus constructed in accordance with the invention' V 2 is an. and elevation of thesame looking up stream; r I.

Fig. 315 a similar View, with parts in secs tion, looking down stream;

V Fig. 4 is a longitudinal vertical section;

Fig. .5 is'an enlarged longitudinal section oftlwsettlingtank; y Fig. ,6 is a detail section of a portion of i E theor filtering wheel;

Fig. 7 is a detail of asupport forthe, filterin .wheeL- H H a Re erring more; particularly to;thedraw-' ings, the reference numeral 1 indicates sills or beams which are extended across the canal, indicated at 2, and supportedinany conyenient or preferred manner upon :the banks of the canal. Mountedin bearings 3 upon these beams or -sil-ls is. av shafts, andsupported upon a suitable platform 1 or. frame carried by andbetween the beams is a motor 5 having its shaft t'i-extended to and connected. with the shaft 4' by gearing: 7 The motor is preferably a small electric motor and the gearing may be of any apro riate form, these parts being illustrated: in t edrawings in a moreor less eonventional manner; The beams 1 are located: 7 near the main canelor source of supply and the shaft 4 extends down'streamrfrom the main canal or source of supply. To the cured a hub,8, in the formof a bowl, and extending upon diverging radial lines from thehub arespokes' 9 which maybep'rovided in any desired numbcn, These spokes are secured at one end rigidly tofithe inner side of the hub and at their opposite ends are secured to a rim 10 having a metallic tire 11 shrunk thereon. Extending between the lower extremity of the shaft): and intermediate points of the spokes 9 are braces 12 having their outer ends rigidl secured .to the spokes and their inner end cured toa flange or collar 13 on-the shaft. Between. adjacent s kes, at the junction of the same with the aces 12, are girders 14 tained. In the bed of the canal at opposite sides of the central longitudinal line thereofyan d in the vertical plane of the rim 1O said'shaft near the lower end thereof is ses rigidly scwhereby a rigid and strong structure is at-.

and the 11 are anchored posts 15 to which are. hingedly secured the lower ends. of. frames 16 which extend upwardly over-the sides of the canal; to the ban-ksthereof, as shown most clearlyin Fig.-' 7; V Rollers 1'7 are mounted in the lowerportions of these.

- frames 16 tobe. engaged by and support the rim 10 soythat; while; the filtering. wheel will be firmly supported the 7 strain upon the shaft' l will-be reduced and the wheelmay rotate readily a t-all times. Tothe upper ends ofithe frames 16 areattached springs 18 having; their upperend's attached to adjusting bolts-19 which are carried by bracks ets2O secured-to posts 21 on the banks of the canal. The bolts 19 may obviously be adjusted to impartthe propertension to the springs 18: and the springs 18 will act to hold the rollers 17 in constant contact with i the rim 11, While at thesame: time yielding to any slight irregularities or, deviations from; a true circle which may happen to oc-' our in the rim.

Covering the space defined by the spokes 9, the girders 14 and the rim 10,: is as screen 22 which is preferably of wire netting, and this screenvmay be continuous through-the entire circumferential extent of-the wheel if desired, but I, prefer ,to provide trwp-- zoidal framesi23 to fit between som'e' of the spaces betweenithe 1 spokes, which: frames are secured rcmovablyinirplace by.--resting upon shoulders or rabbets provided upon the adjacent spokes'9 at the inner Jsides thereof, and buttons or other form of latches" 26 carried by the spokesand' adaptedto pmi jectov'er the edgesof the frames, as will be understood upon refercnceto Fig. 6;"

I Upon the inner side of the wheel are prov-ided' take-up bafllesfi'l" which are disposed in angular relation to the lines of the spokes and arepreferably so located that each bafile extends *diagonally between the lines occupied'upon the-outer side of-tlie screen by twoad'acent spokes. 'These bafiles pro ect inwardl y from the" inner surface 01: the screen and are adapted, as the wheel is rotated, to pass through the water and take up the moss and other objectionable matter therein and carry "it around-t0 aihigher point of the wheel where it will be discharged into a ilume 28 suitably supported upon a frame 29at the lower end of the wheel and extending:within the wheelin'proper position to receive thedischarge, as shownmost clearly in Fig. l. Thelower end of this flame is arranged over the receiving end of a. settling tank 30 whlch-issupported inany convenient manner with one'end restmg on the bankof the canalland its otherenddisposed under the-discharge end of the flume. The receiving end .otthistank has its-top entirely open and unobstructed as shown at 31, and extending from said open space toward the opposits end of the tank is a downwardly in- 1 will bereturnedg to the canal.

clined screen-32,}the bank end'of the tank being'provided with a clean-out opening 83 normally closed by agate 34. Itwill be readily noted that aclear space is'provided within the; tank abovethe screen 32' and a discharge pipe 35 communicates with the said space at the lower end of the'scree n'and extends therefrom to a point over the canal, as shownin. Fig. 1 *so that the clear water I It will be noted "that the water is discharged into the tank so that it will flow under the screen and as the level ofthe water rises it will pass through the screen so that the moss, slime 3i and other matter carried into thetank by the water will be caught and restrained and only clear, water permitted to pass from the tank." When the accumulation 'of the for" eign matter has become sufficiently great, the

operation of the apparatus maybe temporarilyfarrested and the gate 34 opened so that the tank may be cleaned by withdrawing the accumulations through the clean-out opening 33.

In order that the moss and like matters may I be prevented from adhering to the in its under side so that a constant spray of water will be discharged onto the screen and will pass through the same at a point/over the'flume and, consequently,'wash into the fluinc the moss and other matters which tend to cling to the screen. This pipe 36 has one and closed and supported by a post- 37 erected upon'one' of the sills 1 and its other end is connected to a pump (not shown) which draws water from a point of the canal below the filtering apparatus so that clear water will be discharged onto the wheel.

' As shown in Fig. 4, the bottom of the canal or ditch is higher at the point where thefiltering wheel islocated than it is under the wheel and at lower points of the canal therebyproviding a step or shoulder 38, and

to this step or "shoulder I secure a chute or guide 39 which extends across the bottom of the'canal and up the sides ofthe same to project intothe wheel and direct'the water into the interior of the wheel and prevent it dropping between the entrance tothe wheel and the bottom of the canal so that all the water will be forced to flow into the wheel and be subjected to the clearing action of the same.

' Fronzithe foregoing description, taken in connectionwith the accompanying drawings, it will be seen that I have provided a very eflicient and compact apparatus which may be installedinanycanal fandbythe use of which the forei n matters which detract from the value 0 the wateras an irrigation a rim connectingthc outer ends of said spokes, radial-bracessecured to and extend mg between the endof the shaft and intermediate POIIllISOftllG spokes, girders connecting-thespokes at the ends ofsaid braces, and a conical screen carried by the rim, the

spokes and the girders.

a 21in apparatus forthe purpose set forth comprising'a shaft, a plurality of radially disposed diverging spokes carried bythe shaft, a rim connecting the outer ends of SZLIdSPOkQS, braces extending between the end of the shaft and intermediate, points of the spokes, girders connecting the spokes at onally between adjacent spokes.

3. An apparatus for the purpose set forth comprising a rotatable screen, means on the screen for taking up foreign matters in water flowing through the screen, means for re moving the foreign matters from the screen, 10

and yleldably supported means within the stream for engaging and supporting the receivlng end of the screen.

' In testimony whereof I aflix my signature;

ERNEST L. BISHOP. Y [L. s.] 

